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error: prefer `FxHashMap` over `HashMap`, it has better performance
--> $DIR/default_hash_types.rs:16:41
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LL | let _map: HashMap<String, String> = HashMap::default();
| ^^^^^^^
|
= note: a `use rustc_data_structures::fx::FxHashMap` may be necessary
note: the lint level is defined here
--> $DIR/default_hash_types.rs:4:9
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LL | #![deny(rustc::default_hash_types)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^
error: prefer `FxHashMap` over `HashMap`, it has better performance
--> $DIR/default_hash_types.rs:16:15
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LL | let _map: HashMap<String, String> = HashMap::default();
| ^^^^^^^^^^^^^^^^^^^^^^^
|
= note: a `use rustc_data_structures::fx::FxHashMap` may be necessary
error: prefer `FxHashSet` over `HashSet`, it has better performance
--> $DIR/default_hash_types.rs:19:33
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LL | let _set: HashSet<String> = HashSet::default();
| ^^^^^^^
|
= note: a `use rustc_data_structures::fx::FxHashSet` may be necessary
error: prefer `FxHashSet` over `HashSet`, it has better performance
--> $DIR/default_hash_types.rs:19:15
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LL | let _set: HashSet<String> = HashSet::default();
| ^^^^^^^^^^^^^^^
|
= note: a `use rustc_data_structures::fx::FxHashSet` may be necessary
error: aborting due to 4 previous errors
|
